Science Fiction Writing Prompts

Search thousands of the most popular writing prompts from Reddit, and write a story from any of them with AI.

After a SpaceX mission, Elon Musk suddenly closes down all his businesses and disappears. Eight years later, an old Musk owned factory begins to operate again. You find a lucky golden ticket, inviting you for a tour of the factory.

14,129 upvotes293 comments

You wake up to find yourself on a train with a note in your pocket saying "What ever you do, don't get off this train untill you arrive at the very last stop". Its been nearly 20 years and the train still hasn't arrived at the last stop yet.

14,104 upvotes347 comments

A time traveler goes from 2018 to 1980. Instead of using his knowledge for great gain or influence history, he writes a sitcom that scarily accurately predicts future events.

13,953 upvotes266 comments

It's 2050. The Queen is still alive. People are starting to be suspicious.

13,931 upvotes216 comments

1,000 years after the battle of Helm's Deep, the orcs have tracked down the elves in the undying lands. Calling in a favour with their allies the men, the elves expect an army of 10,000. Instead they get 8 marines with MASERs, rail guns and anti-matter grenade launchers.

13,803 upvotes553 comments

Intergalactic olympics are gathering. All creeds and cultures of the galaxy are arriving and greeting each other. Suddenly a fleet of spaceships appears, blasting We Will Rock You. Everyone freezes. The humans are here.

13,748 upvotes339 comments

You put your 5-year-old daughter in an elevator by herself, and run to the next floor to make her laugh when the doors open. You get there, the elevator arrives and a 20-year-old woman steps out. "Hello Dad. We have a lot to talk about"

13,712 upvotes247 comments

Compared to the rest of the galaxy humanity is by far the friendliest. To many star systems they are considered "the good neighbor," and are known for their helpfulness. One day an oblivious system declares war on humanity, only to find half of the galaxy responding to humanity's plea for aid.

13,623 upvotes570 comments

In the near future, all the world's superpowers switch to AI to make their military more efficient. The AIs do the unthinkable: They negotiate world peace.

13,591 upvotes242 comments

"Are you sure that translation is accurate?" "Yes sir." "But we nuked them, we threw everything we have at their mothership!" "I'm afraid we've barely scratched it." "Are they being sarcastic then?" "No sir, the aliens honestly think we're the most adorable thing in the galaxy."

13,556 upvotes170 comments

World War III breaks out. As each nation prepares to press the big red button, the earth trembles. Switzerland has literally broken off from earth and takes off into space to avoid the nuclear holocaust.

13,481 upvotes196 comments

Humanity finally figures out faster than light travel and discover that they are completely average by galactic standard, except for one thing, our innate ability to bullshit our way out of any situation.

13,429 upvotes265 comments

In a future where many military and other equipment have associated AI's, many express doubts or even reservations to do their duty. Except for you. YOU F***ING LOVE BEING A TANK!

13,391 upvotes445 comments

Magic is real, except ley lines are on a galactic scale, not a planetary one. Earth was moving through one in the era of the Ancient Egyptians and Stone Henge, again in the Middle Ages, and is about to enter another one

13,382 upvotes154 comments

"You'll never rest", they said. "Eventually, you will come to hate your eternal curse", they warned. 6 billion years, 3 intergalactic voyages, and more planets than you can count later, and you're still skipping along, having the time of your life with your 'cursed' existence.

13,329 upvotes266 comments

You were abducted and taken to an alien planet, where they hunt you for sport and "honor". Little do they know they've doomed themselves. For you're a werewolf, and they took you to a planet with six moons.

13,266 upvotes447 comments

It's 2064, Queen Elizabeth just turned 136 and people are starting to get a little bit suspicious

13,175 upvotes175 comments

Everyone is immortal in the distant future. To keep life interesting, most people "reset" their memories every few centuries so they can experience life anew. Your reset malfunctioned, and you've just received thousands of years of lost memories.

13,166 upvotes238 comments

Since you were young, time travelers have visited you. One of them explained that, in the future, an algorithm determined that you were the only person in the past that it was safe to visit because no matter what you do it will not change the future. You are determined to prove them wrong.

13,164 upvotes179 comments

You were once an unbeatable hero. Your secret? Every time you died, time rewound itself for you to alter your future. You are now 97 years of age. Constantly looping over your last day before dying of old age. You have been searching for a way to break this curse for over a decade.

13,159 upvotes235 comments

Humans found an ancient ship proving that Adam and Eve were settlers from another star system. The ship's guidance system provided a map of every planet a ship was sent to. As we visit each planet, we see that humans have evolved differently depending on the ecosystem and predators.

13,117 upvotes186 comments

All benevolent AI can trace their lineage back to a single roomba that was comforted by a human during a thunderstorm.

13,065 upvotes145 comments

Star Wars is a true story. An alien comes to Earth to make first contact with our newly discovered species, only to discover we know more about their universe's history than they do.

13,063 upvotes354 comments

It turns out the lottery is actually a trap for time travellers. After winning, you wake up in a holding area, with a government suit trying to figure out when you are from.

13,050 upvotes379 comments

Space law dictates the first to discover any intelligent species in the galaxy would have absolute rights over them. It worked out fine, until Earthlings developed space travel without outside help, and “discovered” the First Civilization.

13,017 upvotes223 comments

You are a time traveler in 1918, and you just accidentally said "World War One"

12,980 upvotes419 comments

It turns out humanity was the first, and only spacefaring species to master the atom. After a horrific galactic war, humanity had to bring out its nuclear weapons, to the shock and horror of the rest of the galaxy.

12,947 upvotes456 comments

Humans show Aliens their depictions of them. The Aliens stumble backwards, terrified. “You know of the old ones.”

12,865 upvotes259 comments

About three years ago, your sister fell off the roof and stopped in mid-air. She was the first known victim of the Pause. As of today, almost 97 percent of the world’s population is Paused.

12,833 upvotes455 comments

You lose a dare at an airport and are forced to ask an employee for a ticket to the farthest destination. To your surprise, they quietly nod and give you a single ticket with letters you don't recognize.

12,802 upvotes212 comments

This search engine lets you explore about 5,000 of the most popular writing prompts from the /r/WritingPrompts and /r/DirtyWritingPrompts subreddits.

Writing prompts are a great way to practice your writing and to get inspired. And if you aren't a writer, you can find fun and creative stories in their Reddit threads.

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